
                <!doctype html>
                <html lang="en">
                  <head>
                    <meta charset="utf-8">
                    <title>测试rollup开发环境</title>
                    
                  </head>
                  <body>
                  <div id='app'>APP 页面</div>
                    <script  type="module">
                    import easycanvas from './index.js'
                        const ec = new easycanvas()
                        console.log(ec);
                    </script>
                  </body>
                </html>